Expansion valve



FIG. 1 is a bottom perspective view of an expansion valve, showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a plan view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a left side view thereof;

FIG. 7 is a right side view thereof;

FIG. 8 is a cross-section of A—A line thereof; and,

FIG. 9 is a cross-section of B—B line thereof.

The broken line showing of unclaimed portions in FIGS. 8 and 9 forms no part of the claimed design. 

The ornamental design for expansion valve, as shown and described. 